Making CFLAGS=-g1 bigger but more useful

[Ian Lance Taylor]

Andi Kleen <andi@firstfloor.org> writes:

> On Fri, Apr 24, 2009 at 08:24:56PM -0400, Frank Ch. Eigler wrote:
>> 
>> I'm working on a little patch that extends the data produced for the
>> little-used (?)  -g1 mode.  Normally, this produces very little DWARF
>> data (basically just function declaration locus, PC range, and basic
>> backtrace-enabling data).  Compared to normal -g (== -g2) mode, this
>> is very small.
>
> I think what I would like to have is a modus to generate line numbers
> (so that objdump -S works nicely) but nothing else. That would be useful
> for crash dump analysis etc.

It's not quite that, but the gold linker has a --strip-debug-non-line
option which discards all the debugging information except what is
needed to map addresses to lines.

Ian